1 .. SPDX-License-Identifier: GPL-2.0 2 3 Kernel driver sht4x 4 =================== 5 6 Supported Chips: 7 8 * Sensirion SHT4X 9 10 Prefix: 'sht4x' 11 12 Addresses scanned: None 13 14 Datasheet: 15 16 English: https://www.sensirion.com/fileadmin/user_upload/customers/sensirion/Dokumente/2_Humidity_Sensors/Datasheets/Sensirion_Humidity_Sensors_SHT4x_Datasheet.pdf 17 18 Author: Navin Sankar Velliangiri <navin@linumiz.com> 19 20 21 Description 22 ----------- 23 24 This driver implements support for the Sensirion SHT4x chip, a humidity 25 and temperature sensor. Temperature is measured in degree celsius, relative 26 humidity is expressed as a percentage. In sysfs interface, all values are 27 scaled by 1000, i.e. the value for 31.5 degrees celsius is 31500. 28 29 Usage Notes 30 ----------- 31 32 The device communicates with the I2C protocol. Sensors can have the I2C 33 address 0x44. See Documentation/i2c/instantiating-devices.rst for methods 34 to instantiate the device. 35 36 Sysfs entries 37 ------------- 38 39 =============== ============================================ 40 temp1_input Measured temperature in millidegrees Celsius 41 humidity1_input Measured humidity in %H 42 update_interval The minimum interval for polling the sensor, 43 in milliseconds. Writable. Must be at least 44 2000. 45 =============== ============================================
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